//
//  WBVisitorView.swift
//  传智微博
//
//  Created by wong on 16/12/25.
//  Copyright © 2016年 Canis. All rights reserved.
//

import UIKit

/// 访客视图

class WBVisitorView: UIView {
    
    ///注册按钮
    lazy var registerButton:UIButton = UIButton.cz_textButton("注册",
                                                              fontSize: 16,
                                                              normalColor: UIColor.orange,
                                                              highlightedColor: UIColor.black,
                                                              backgroundImageName: "common_button_white_disable")
    ///登录按钮
    lazy var loginButton:UIButton = UIButton.cz_textButton("登录",
                                                           fontSize: 16,
                                                           normalColor: UIColor.darkGray,
                                                           highlightedColor: UIColor.black,
                                                           backgroundImageName: "common_button_white_disable")
    ///访客视图信息字典[imageName / message]
    ///如果是首页 imageName == ""
    var visitorInfo:[String:String]?{
        didSet{
            //1>取字典信息
            guard let imageName = visitorInfo?["imageName"],
                let message = visitorInfo?["message"] else {
                    return
            }
            //2>设置消息
            tipLabel.text = message
            
            //3>设置图像,首页不需要设置
            if imageName == ""{
                startAnimation()
                return
            }
            
            iconView.image = UIImage(named: imageName)
            //其他控制器的访客视图不需要显示小房子/遮罩视图
            houseIconView.isHidden = true
            maskIconView.isHidden = true
        }
    }
    
    
    //MARK: - 构造函数
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    //旋转图标动画
    private func startAnimation(){
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.toValue = 2 * M_PI
        anim.repeatCount = MAXFLOAT
        anim.duration = 15
        
        //动画完成不删除，如果iconView被释放，动画会一起销毁！
        //在设置连续播放的动画非常有用
        anim.isRemovedOnCompletion = false
        //将动画添加到图层
        iconView.layer.add(anim, forKey: nil)
    }
    // MARK: - 私有控件
    
    /// 懒加载属性只用调用 UIKit 控件的指定构造函数，其他都需要使用类型
    ///图像视图
    lazy var iconView:UIImageView = UIImageView(image:UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    //遮罩图像 - 不要使用maskView
    lazy var maskIconView:UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_mask_smallicon"))
    
    ///小房子
    lazy var houseIconView:UIImageView = UIImageView(image:UIImage(named: "visitordiscover_feed_image_house"))
    ///提示标签
    
    lazy var tipLabel:UILabel = UILabel.cz_label(
        withText: "关注一些人，回这里看看有什么惊喜",
        fontSize: 14,
        color: UIColor.darkGray)
    
  
    
    
}




// MARK: - 设置界面
extension WBVisitorView{
    
    func setupUI(){
        //0.在开发的时候，能够使用颜色就不要使用图像，效率会更高
        backgroundColor = UIColor.cz_color(withHex: 0xEDEDED)
        //1.添加控件
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(houseIconView)
        addSubview(tipLabel)
        addSubview(registerButton)
        addSubview(loginButton)
        //文本居中
        tipLabel.textAlignment = .center
        
        //2.取消 autoresizing
        for v in subviews {
            v.translatesAutoresizingMaskIntoConstraints = false
        }
        
        //3.自动布局
        
        let margin:CGFloat = 20
        
        //1>图像视图
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: -60))
        //2>小房子
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: 0))
        //3>提示标签
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
       
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 236))
        //4>注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .left,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .left,
                                         multiplier: 1.0,
                                         constant: 0))
        
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))
        
        //5>登录按钮
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .right,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .right,
                                         multiplier: 1.0,
                                         constant: 0))
        
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: registerButton,
                                         attribute: .width,
                                         multiplier: 1.0,
                                         constant: 0))
        //6>遮罩图像
        //views : 定义 VFL 中的控件名称和实际名称的映射
        //metrics : 定义 VFL 中()指定的常数映射关系
        let viewDict = ["maskIconView": maskIconView,
                        "registerButton": registerButton] as [String : Any]
        let metrics = ["spacing": -20]
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-0-[maskIconView]-0-|",
                                                      options: [],
                                                      metrics: nil,
                                                      views: viewDict))
        
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-0-[maskIconView]-(spacing)-[registerButton]",
                                                      options: [],
                                                      metrics: metrics,
                                                      views: viewDict))
    }
    
}
